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Bun v1.4.1

calendar_today September 4, 2026 domain bun

Fixes 202 issues, addressing 236 👍. HTTP/2 in Bun.serve, Bun.write() streams Response bodies to disk, self-contained workspace node_modules, bun install –offline and –prefer-offline, WebSocket pause() and resume(), crypto.argon2, tree-shaking through dynamic import(), smarter CommonJS to ESM conversion for default imports, –compile –bytecode when cross-compiling, smaller and faster-starting compiled executables, up to 9x faster Buffer reads and writes, 2x faster AsyncLocalStorage, faster startup, and many bugfixes and Node.js compatibility improvements.

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